Mac users are being urged to install the latest macOS Big Sur 11.3 update as it patches a massive security vulnerability which could allow malware to bypass layered protections of the operating system.
The vulnerability was discovered by security researcher Cedric Owens who reported it to Apple. The bug CVE-2021-30657 was described in Apple security notes as a logic issue that could allow malware to bypass Gatekeeper checks.
Gatekeeper was introduced in OSX Lion (10.7) as an extra layer of protection when users downloaded executable files from the internet, being a protection mechanism built into the MacOS aimed at alerting users about files downloaded from the internet and preventing bad actors from tricking users into infecting their machines.
However, according to security researcher Patrick Wardle, the bug discovered by Owens allowed attackers to easily bypass all these security measures without generating any system alerts to warn the users, adding that it was already being exploited by malware writers.
The good news among all the bad is that Apple were quick to take action and they released a patch as soon as five days after Owen first reported the bug. If you are in need of assistance with upgrading your Mac, please contact us and one of our friendly team will be happy to help. Read original story here https://www.itnews.com.au/news/mac-users-urged-to-update-os-to-fix-massively-bad-bug-563820